Prolonged lactation in mice and its effect on mammary tumorigenesis.
D000818:Animals; D005260:Female; D007774:Lactation / Q000502:physiology*; D008321:Mammary Glands, Animal / Q000166:cytology / Q000601:surgery; D008325:Mammary Neoplasms, Experimental / Q000453:epidemiology*; D051379:Mice; D011247:Pregnancy